Improvement in lap-shavers and leather-splitters



PATENTED APR. 18, 1865. J. HARVEY & F. HERKSTROETER. LAP SHAVER ANDLEATHER SPLITTER.

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. UNITED STATES PATENT OFFICE.

JOHN HARVEY AND FREDERICK HERKS'lR-OETER, or sr. LOUIS, MO.

IMPROVEMENT IN LAP-SHAVERS AND LEATHER-SPLITTERS.

Specification forming part of Letters Patent N0. 4?,30. dated April 18,1865,.

To all whom it may concern.-

Be it known that we, JOHN HARVEY and Fnnnnnron; HnnKs'raon'rnn, of thecity and county of St. Louis, and State of Missouri, have invented acertain new Improvement in the Lap-Shaving and Leather-Splitting Machineof John Harvcyand 133,11. Harvey, the patent on which was allowed on the9th day of May, 186 i; and we do hereby declare that the following is afull, clear, and exact description thereof, reference being bad, to thencco-inpanying drawings and the letters of reference marked thereon.

Figure 1 is a perspective view of one of the improved machines. Fig. 2is a transverse section of a machine. Fig. 3 is an end elevation of amachine.

To enable those skilled in the artto make and use our invention, we willproceed to deser'ibe its construction and operation.

We use the frame A, the eccentricroller B, and the knife 0 in.substantially the same manner as they are used in the machine inventedby John Harvey and F. H. Harvey, in which the frame A consists of abed-plate with an upright poston either end of it. These upright postssustain the eccentricroller B between them and the cutting-knife Gdirectl y over the roller B. The front edge of the knife 0 should be ina vertical line passing through the center of the journal or of theroller B. A continuation of the journal or, after passin g through oneof the supporting-posts, has a handle, I), attached to it for thepurpose or turning the roller 13.

The improvements which wenow make on the above-described machineare theadjustable pillar-block a, the pressure-roller d, the gage e, and theadjustable lockpin i, all of whichare used for the purposes hereinafterdescribed.

. Into both of the upright posts of the frame A are fitted theadjustable pillar-blocks a. (Seen in Figs. 1 and 3.) These pillar-blocksform the bcarin gs of the journal a, and are secured to the posts of theframe A by means of the screws or a, which pass through slots left inthe pillar-blocks for that purpose. By tum ing up the screws a a thepillarblocks will be secured in position. .When the screws n n areslack, the pillar-blocks may be moved ,up

or down, as may be required to bring the highest part of the eccentric Bwhen it is turned up in the same plane with the bottom side of the knife0.

The pressure-roller d is introduced between the twoposts of the frame A,so that its lower edge, when down, will be in the same plane with thebottom side of'the knife- The journals w of the roller 01 pass throughvertical slots left in the upper ends of the posts of the frame A forthat purpose, and are held down by means of spiral springs within theposts. The object of the roller d is to press the leather during the.process of cutting down hard upon the roller B, sothat it cannot run .uptoo high on the knife and be cutoff.

The gage e is a metal plate fastened to the machine by means of the twowires h h, which pass through lugs 3 on the posts, and may be hold fastby means or set-screws. The gage a may be set at a greater or lesserdistance from the edge of the knife,'and it will thereby regulate thelength of the lap, as the end of the strap or piece of leatherv to beshared should be put through the machine until it stops against theplate of the cage 0.

There is a series of holes bored in one of the ends of theeccentricroller B, as shown in Fig. 3. Into any of these holes thelockpin *5 may be inserted, which will stop the motion'of the rollerwhen it'strikes against the frame A. t

When the machine is to be used as a lapshaver, the end of the piece ofleather to be shaved should be inserted between therollei-B and theknife 0 until it steps against the gage e then the roller 13 should beturnedaround by means of the handle I) at the same time that the leatheris withdrawn, and the result" of the operation will be a smoothly-shavedlap of regular tapes.

When the machineis to be used as a leathersplitter, the gage 0 should beremoved entirely from the machine, the eccentric turned round i to anydesirable point, and the lock-pin i inserted into any one of the holesmade in the eccentric B for that purpose. The pin 5 should be put intothe hole-nearest the post ofthe frame when the eccentric is in properposition, and it will then come in contact with the post and hold theeccentric in-the desired claim as new, and desire to secure by Lettersposition while the leather is pulled through and evenly, split.

Having 'describeu our 7 invention, W11 at. we

Patent, is-

The adjustable pillar-block a, the pressureroller (1, the gage e, andthe adjustable l 0ck- 1

